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Table 3 Cox regression analysis for time to In field/Overlap/Marginal failure (Local control)

From: A retrospective, deformable registration analysis of the impact of PET-CT planning on patterns of failure in stereotactic body radiation therapy for recurrent head and neck cancer

 

Overall Cohort (n = 96)

Definitive SBRT Subgroup (n = 89)

 

Univariate

Multivariate

Univariate

Multivariate

 

p

HR (95% CI)

p

HR (95% CI)

p

HR (95% CI)

p

HR (95% CI)

PET-CT Planning

0.165

0.64 (0.34, 1.20)

0.161

Not entered

0.051

0.53 (0.28, 1.003)

0.051

0.53 (0.28, 1.003)

Tumor volume (5 cc increase)

0.609

1.01 (0.97, 1.05)

0.609

Not entered

0.495

1.003 (0.98, 1.06)

0.568

Not entered

Cetuximab with SBRT

0.861

0.95 (0.51, 1.76)

0.861

Not entered

0.354

0.74 (0.40, 1.39)

0.294

Not entered

Interval from previous radiation to recurrence (3 months increase)

 

0.300

0.99 (0.96, 1.01)

0.297

Not entered

0.361

0.99 (0.96, 1.01)

0.440

Not entered